I just saw the story in the Sydney Morning Herald -
two of the A. titanum at the Royal Botanic Gardens
Sydney are coming into bloom. To quote the Herald: 'In
an extraordinarily rare event, two "huge deformed
penises" are about to burst open, drawing thousands of
spectators to watch - and sniff...'

Apparently... they're expected to open about a week
apart, a cross-pollination will be attempted, and
they'll be on display over the next couple of weeks or
so.

link to the news story & pic:
http://www.smh.com.au/articles/2006/11/01/1162339918476.html?from=top5

display times & info from the Gardens:
http://www.rbgsyd.nsw.gov.au/royal_botanic_gardens/Whats_on/royal_botanic_gardens__and__domain_calendar/event_view?SQ_CALENDAR_VIEW=event&SQ_CALENDAR_EVENT_IDy754